The Da Vinci Code Faith, Fact or Fiction The Da Vinci Code Faith, Fact or Fiction.
Energy Fact or Fiction: Determine if the following statements are fact or fiction.
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Transcript of Energy Fact or Fiction: Determine if the following statements are fact or fiction.
![Page 1: Energy Fact or Fiction: Determine if the following statements are fact or fiction.](https://reader035.fdocuments.us/reader035/viewer/2022062620/551afc1d55034607418b474c/html5/thumbnails/1.jpg)
Energy
Fact or Fiction:
Determine if the following statements are fact or fiction
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Fact or Fiction1. Petroleum is the ultimate source of
energy on Earth.
2. Traditional sources of energy come from plants.
3. Fossil fuels are available in limitless supplies.
4. The stored energy in petroleum originally came from the Sun.
5. Natural gas is formed from the remains of living things.
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Fact or Fiction6. Alternative energy sources are
renewable sources.
7. Solar heating uses fans to distribute heat.
8. There are no drawbacks to using hydroelectric power.
9. Energy obtained directly from heat in the earth’s crust is called geothermal energy.
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Fact or Fiction10. Wind is one of the least expensive
ways to produce electricity.
11. Nuclear fuel is a nonrenewable resource.
12. No greenhouse gases are released from nuclear power plants.
13. Biomass energy sources are nonpolluting.
14. Shale oil is profitable to extract and refine.
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Traditional Energy Resources
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Fact or Fiction – Answers 1. Petroleum is the ultimate source of
energy on Earth.
–Fiction
2. Traditional sources of energy come from plants.
–Fact
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Transfer of Solar Energy• The Sun is the ultimate source of
energy on Earth.• Fuels are materials that are burned
to produce heat or power.
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Traditional Sources of Energy• Wood
– most commonly used biomass fuel – Used for thousands of years
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Traditional Sources of Energy• Field Crops
– Used as fuel when wood is scarce. • The simplest way – burn them
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Traditional Sources of Energy• Fecal Material
– Feces are the solid wastes of animals. – used when have limited forest
resources
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Traditional Sources of Energy• Peat
– formed when dead plant material is compressed in a bog
– burns better than wood– a fossil fuel
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Fact or Fiction – Answers 3. Fossil fuels are available in limitless
supplies.
• Fiction
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Fossil Fuels• formed over geologic time• nonrenewable -- millions of years
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Fact or Fiction – Answers 4. The stored energy in petroleum
originally came from the Sun.
• Fact
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Fossil Fuels• formed from plants and animals that
lived 300 million years ago in swamps and oceans
• the plants and animals died and decomposed under tons of rock and ancient seas
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Fossil Fuels• Coal
– formed from compressed organic matter in ancient swamps.
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Fossil Fuels• Petroleum
– natural crude oil– formed in shallow seas
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Fact or Fiction – Answers 5. Natural gas is formed from the
remains of living things.
• Fact
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Fossil Fuels• Natural Gas
– Methane -- bacteria– colorless, shapeless, and
odorless
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Alternative Energy Resources
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Alternative Energy Resources• Petroleum - 50 years??• Coal - 150 years??
–At current usage rates! –Are rates going to stay the same?
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Fact or Fiction – Answers 6. Alternative energy sources are
renewable sources.
• Fact(most of them)
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Solar Energy• The Sun is the ultimate source of
energy on Earth. • The main advantages
– Free – No pollution
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Fact or Fiction – Answers 7. Solar heating uses fans to
distribute heat.
• Fiction
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Solar Energy• Passive Solar Heating
– Sun shining through a window– Sun shining on bricks, asphalt – heat
can be released at night.
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Solar Energy• Active Solar Heating
– solar panels collect light – fans and pumps distribute heat
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Solar Energy• Photovoltaic Cells
– convert solar energy into electrical energy that is stored in batteries
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Fact or Fiction – Answers 8. There are no drawbacks to using
hydroelectric power.
• Fiction
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Hydroelectric Power• energy produced by moving water • 20% of the world’s electricity
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Aswan High Dam
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Three Gorges Dam
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Three Gorges Dam
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How it Works
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Advantages• Controls flooding• Low operating and maintenance
costs• No polluting waste products• Long (but finite) life spans• Areas of recreation
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Disadvantages• Controls flooding• Large flooded areas; people
displaced• Slow moving water pathogen
breeding ground• Destroy habitat• Disrupt fish migration
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Disadvantages• Sedimentation
– Dredging – Sediments don’t enrich farmland
• Expensive to build• Destroys rivers• Earthquakes
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More Dams?• Not in US -- why not?• Outside US?
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Tidal Power• Energy from the Oceans
– energy in waves used to generate electricity
– may disrupt coastal and marine ecosystems
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Fact or Fiction – Answers 9. Energy obtained directly from heat
in the earth’s crust is called geothermal energy.
• Fact
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Geothermal Energy• energy produced by steam and hot
water generated by Earth’s own internal heat
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Geothermal Energy• Advantages:
– abundant and reliable• Disadvantages:
– must be managed carefully – contains large amount of minerals -
pollution – Transporting is not practical
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Fact or Fiction – Answers 10. Wind is one of the least expensive
ways to produce electricity.
• Fact
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Wind Energy• Wind mechanical energy
electrical energy • Most wind farms are in California,
– ND, SD, and TX have the best locations• 10% of the world’s electricity by the
year 2050
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Wind Energy• Advantages:
– virtually unlimited– nonpolluting – can be built quickly– inexpensive, but only in areas with
steady winds • Disadvantages:
– not very attractive – may interfere with and even kill birds– requires land lease/purchase
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Fact or Fiction – Answers 11. Nuclear fuel is a nonrenewable
resource.
12. No greenhouse gases are released from nuclear power plants.
• Fact
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Nuclear Energy• During nuclear fission, atoms are
split, releasing large amount of energy
• Uranium is commonly used• 17% of the world’s electricity
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Nuclear Energy
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Nuclear Energy• No new nuclear plants have been
built in the United States since 1978.– Poor management– Costs– poor designs
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Nuclear Energy• Advantages
– Lots of energy available– No greenhouse gases– Uranium available
• Disadvantages– Nuclear waste storage– Radiation accidents– Weapons?
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Fact or Fiction – Answers 13. Biomass energy sources are
nonpolluting.
• Fiction
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Biomass• Biomass is a renewable energy
resource – as long as the organisms are replaced. – Not wood, field crops
• Disadvantage – release carbon dioxide and particulate
matter
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Biomass• Ethanol
– Made from sugar and grain crops– Grain alcohol
• Methanol– Made mostly from natural gas– Wood alcohol
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Biomass• Biogas
– Made from plant and animal waste• Biodiesel
– Manufactured from vegetable oils, animal fats, or recycled restaurant greases
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Fact or Fiction – Answers 14. Shale oil is profitable to extract and
refine.
• Fiction
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Energy from Oil Shale and Tar Sand• Oil shale is heated to form oil
known as shale oil. • The cost of processing oil
shale is higher than the cost of traditional crude oil.– requires lots of energy– produces air and water pollution